Which of the following equations shows "twice a number is eighteen?"

Answers

Answer 1
Answer:

I don't see the answer choices, but 2 equations you could use to get eighteen would be:

9 × 2 = 18

     OR

9 + 9 = 18

See? Twice a number is eighteen. You can use any of my equations to get eighteen

↑   ↑   ↑ Hope this helps! :D


Related Questions

Valerie purchased x tubes of lipstick at $4 each and y bottles of nail polish at $2 each. she spents less than $12 not including tax. which point represents a reasonable number of lipsticks and bottles of nail polish that valerie purchased?a) 2,3b) 1,5c) 1,3d) 2,2
Which of the following is a number set that contains the number –5?
Find the value of the variable if P is between J & K.
What is the perimeter of a triangle with vertices located at (-1, 4), (2, 7), and (1, 5), rounded to the nearest hundredth? A. 7.63 units B. 7.89 units C. 8.71 units D. 9.24 units
What is 1/3 of 225,000

Russian ice breaker yamal can move forward 2.3 meters thick ice at a speed of 5.5 kilometers per hour how long will it take to travel 82.5 kiolometers

Answers

The train travel at 5.5 km per hour .We know that in X hours it will advance by X*5.5 = 82.5 , hence X = 82.5/5= 15It will take 5 hours .I hope I really help !

If 95% of the students are present in a school and the number of absent students is 25, find the total number of students in the school? (A) 500 (B) 400 (C) 600 (D) 450

Answers

Answer: Option A: 500.

Step-by-step explanation:

If 95% of the students are present in a school, then the number of absent students is 5% of the total number of students. We are given that the number of absent students is 25, so we can set up an equation:

0.05x = 25

Solving for x, we get:

x = 25 / 0.05 = 500

Therefore, the total number of students in the school is 500.

Therefore, the correct answer is Option A: 500.

Please let me know if there’s anything else I can help you with!

∠E and ∠F are vertical angles with m∠E=8x+8 and m∠F=2x+38.

What is the value of x?

Answers

As they are vertical angles, their magnitude will be equal.
8x+8 = 2x+38
8x-2x = 38-8
6x = 30
x = 5

So, Your Final Answer would be 5

Hope this helps!

Your Final Answer would be 5

Hope this helps!

Which equation could be used to solve y 2+7y=18 by factoring?

Answers

For this case we have the following equation:


y ^ 2 + 7y = 18

Rewriting the equation we have:


y ^ 2 + 7y-18 = 0

Then, we must factor the equation:


We are looking for two numbers that are equal to 7 and multiplied equal to -18.


We have then:


(y + 9) (y-2) = 0

Answer:


An equation that could be used to solve y^2 + 7y = 18 by factoring is:


(y + 9) (y-2) = 0

 (y + 9)(y - 2) = 0  would be the correct answer .

An odd number on a spinner with equal sized sections labeled 1-8A. a number less than 4
B. a number greater than 4
C. a multiple of 3
D. an even number

Answers

probability is
(desired outcomes)/(total possible outcomes)
total possible is 8 since 8 total spaces

A. number les than 4, there are 3 numbers (1,2,3) so
3/8 os probability

B. number greater than 4, ther are 4 (5,6,7,8), so 4/8=1/2 is probability

C. multiplule of 3, there are 2 (3,6) so 2/8=1/4 is probability

D. even number, there are 4 (2,4,6,8) so 4/8=1/2 is probability


A. 3/8
B. 1/2
C. 1/4
D. 1/2

Which of the following are characteristics of the correlation coefficient? Check all that apply.

A. It must be between -1 and 1.
B. It must be positive.
C. It indicates the percentage of points that lie on the regression line.
D. The correlation coefficient tells you how strong the residuals are.
E. If correlation is positive, the slope of the regression line is also positive

Answers

This is about knowledge between Correlation and Regression.

Option A and E are correct.

  • Correlation Coefficient is the statistical relationship that exists between two variables. Let us look at the options;

Option A; Under different types of correlation coefficient they tend to make use of different range for their definitions but it is always between minimum of -1 and maximum of 1. Thus, the statement is correct.

Option B; It must not be positive because as stated in option A above negative values can be used.

Option C; No, it doesn't indicate percentage of points because in the definition i gave earlier, there is nothing like that. Besides, this is in regression and not correlation.

Option D; This is incorrect as the definition doesn't support it.

Option E; This is correct because positive correlation means that the two variables increase at the same time or decrease at the same time. Thus, it means the regression line will be positive as long as correlation is positive.

Read more at; brainly.com/question/10502086

A. It must be between -1 and 1 
E. If correlation is positive, the slope of the regression line is also positive.